49686780 has 96 divisors (see below), whose sum is σ = 163473408. Its totient is φ = 11116800.

The previous prime is 49686779. The next prime is 49686797. The reversal of 49686780 is 8768694.

It is a super-2 number, since 2×49686780² = 4937552213536800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5685 + ... + 11475.

It is an arithmetic number, because the mean of its divisors is an integer number (1702848).

Almost surely, 2^49686780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49686780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81736704).

49686780 is an abundant number, since it is smaller than the sum of its proper divisors (113786628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49686780 is a wasteful number, since it uses less digits than its factorization.

49686780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5827 (or 5825 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 49686780 is about 7048.8850182139. The cubic root of 49686780 is about 367.6322630042.

The spelling of 49686780 in words is "forty-nine million, six hundred eighty-six thousand, seven hundred eighty".